https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100887
--- Comment #12 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-11 branch has been updated by Jakub Jelinek <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:1c1ee19e7023e18ba63324e06ae9387bde227357 commit r11-8587-g1c1ee19e7023e18ba63324e06ae9387bde227357 Author: Jakub Jelinek <ja...@redhat.com> Date: Fri Jun 4 11:20:02 2021 +0200 x86: Fix ix86_expand_vector_init for V*TImode [PR100887] We have vec_initv4tiv2ti and vec_initv2titi patterns which call ix86_expand_vector_init and assume it works for those modes. For the case of construction from two half-sized vectors, the code assumes it will always succeed, but we have only insn patterns with SImode and DImode element types. QImode and HImode element types are already handled by performing it with same sized vectors with SImode elements and the following patch extends that to V*TImode vectors. 2021-06-04 Jakub Jelinek <ja...@redhat.com> PR target/100887 * config/i386/i386-expand.c (ix86_expand_vector_init): Handle concatenation from half-sized modes with TImode elements. (cherry picked from commit b7dd2e4eeb44bc8678ecde8a6c7401de85e63561)
